Schneider Electric 140-CRP-931-00 PLC Module

Schneider Electric’s 140-CRP-931-00 PLC Module, known as the 140CRP93100 Remote I/O (RIO) head-end adaptor for the Modicon Quantum platform, provides a single-channel interface that bridges the Quantum CPU to RIO drop modules. It is designed for the Quantum 200/500/800 series controllers and connects to the RIO network via one elbowed female connector with a single coaxial cable, using a 75-ohm communications medium. On the bus, it draws about 600 mA and dissipates roughly 3 W of power, and it supports up to 64 I/O words per drop (64 inputs and 64 outputs), with a network capacity of up to 31 drops. A bridge mode capability allows a panel device connected to this port to access Modbus Plus networks or the local PLC directly without traversing the broader network, enabling flexible deployment in mixed topologies. The 931-00 is the single-channel variant; the corresponding 140-CRP-932-00 version provides two channels and higher electrical demand (about 750 mA and 3.8 W), offering expanded I/O capabilities while maintaining Core Quantum compatibility. This head-end adaptor sits in the backplane to facilitate data exchange between the CPU and remote I/O, acting as the primary interface for remote I/O expansion within the Quantum architecture.